Protons, Neutrons and Electrons

Protons, Neutrons and Electrons

Learning Objectives

• I can:

• Explain, in terms of elections, and protons, why a charged object is attracted or repelled by another charged object

• Explain why a charged object can even be attracted to an uncharged object.

• Explain that the attraction between positive protons and negative electrons holds an atom together.

Three particles make up an atom:

Protons, Neutrons and Electrons

Hydrogen is the only atom that usually has NO electrons.

Protons, Neutrons and Electrons

• Protons: Positive charge

• Neutrons: Neutral, charge

• Electrons: Negative charge

• Electrons buzz around the nucleus of an atom

• Proton and Neutrons are found in the nucleus

Multiple Choice

An electron is a _____ charged particle.

• Positively
• Negatively

Multiple Choice

A proton is a _____ charged particle.

• Negatively
• Positively

Multiple Choice

Which two particles make up the nucleus of an atom?

• Protons and Electrons
• Protons and Neutrons
• Molecules and Compounds
• Neutrons and Electrons

Multiple Choice

Two protons _________ each other.

• Repel

• Attract

Multiple Choice

Two electrons _________ each other.

• Repel

• Attract

Multiple Choice

A proton and electron have opposite charges and will ________ each other.

• Repel

• Attract

Demonstration

Demonstration 2

Demonstration 3